Constant of Proportionality

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x

• y = k-x

• y = kx

• y = k/x

• a
• b
• c
• d

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Is this table proportional?

• Yes

• No

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

Write the equation for the table given.

• y = 16x

• y=8x

• y=12x

Is this table proportional or non-proportional?

• Yes

• No

Write an equation for this relationship.

• y = 18x

• y = 18.50x

• y = 22.50x

• y = 22x

What is the direct variation?

• y=9/3x

• y=6x

• y=9x

• y=3x

Determine the direction variation.

• y=1x

• y=4x

• y=8x

• y-2x